Combined quick-change filter cartridge and head



FIG. 1 is a top, rear and side perspective view of the combined quick-change filter cartridge and head showing our new design;

FIG. 2 is a top, front and left side perspective view thereof;

FIG. 3 is a bottom, front and right side perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a left side elevational view thereof; and

FIG. 9 is a right side elevational view thereof. 

The ornamental design for a combined quick-change filter cartridge and head, as shown and described. 